10 J (novanet)
Lift is a synonym for elevate
For cylinders coefficient of lift is approximately half of coefficient of drag while they are equal for Aerofoils.
It depends on the Reduced Velocity and amplitude of oscillation. Lift Coefficient could be as high as 1.0, and as low as -10.0 at very low reduced velocities.
the most high the most great
It actually depends if they lift weights or not. So, it could be either one of them.
10 J (novanet)
The answer would depend on the units used for the force. Since these are not specified, it is not possible to answer the question.
You exert a force of 30 N.
A minimum of 1.667 newtons.
20lbs
Lift any object. Grav. force is acting down, you must apply an upward force to lift the object. Work is force applied through a distance, so work is done if you lift it, but not if you hold it still.
The distance is longer than the lift or the drop, but the force you need is less than the weight of the load.
If the ball is falling, then work is being done.Work is the product of (force) times (distance). The ball in the air has force acting on it, created by gravity, and known as the "weight" of the ball. If the ball is falling, then the work done on it by gravity is (its weight) multiplied by (the distance it falls).If the ball is accelerating up, then something has to be providing force greater than its weight, in order to lift it against the force of gravity. It may be a muscle, a motor, an elevator, or some kind of air-foil taking energy out of wind. The work done on the ball is (the upward force on it) multiplied by (the distance it's lifted).If the ball is moving only horizontally, and not the slightest bit up or down, then almost no work is being done, since there's no significant horizontal force acting on it. The ball does a small amount of work to move air as it moves through the atmosphere.
Because there is a force of gravity constantly pulling it towards the center of earth. When you exert enough force to over come the gravity acting on an object it is lifted
Work done equals force times distance, so 10.0 times 0.9 is 9 joules.
Because it's five times heavier of course !
No matter how much force you exert downward, it shall avail you naught. No downward force acting directly on the object can ever succeed in lifting it.